Network Programming with Perl By Lincoln D. Stein Slots : 1
Table of Contents
Chapter 21. Multicasting
Content
Summary
Multicasting is an attractive alternative to unicasting or broadcasting for sending one-to-many messages across subnet boundaries. Despite the fact that multicasting is more complex than unicasting , it requires surprisingly few additions to the socket API, making multicasting applications easy to write.
The main "gotcha" with multicasting is the uneven support for multicast routing on the Internet, which limits its use to in-house applications and experimental networks like the MBONE.